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$99+ Cheap flights from Medford to Ontario (MFR - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
MFR — ONT
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheap flight deals from Medford to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Medford (MFR) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(Delta)

One-way from

$99
(Alaska Airlines)

Popular in

April

Cheapest in

November

Average price

$377
Provider with most accurate pricing for Medford-Ontario flight deals.
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Provider most trusted by Cheapflights users for Medford-Ontario flights.
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From Medford to Ontario
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One-way flight from Medford to Ontario
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Highest demand for flights based on searches. 7% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Medford to Ontario

Cheapest flights from Medford to Ontario
Explore the most affordable flight options available from Medford to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This Delta deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/115:05 am
MFR
-
ONT
1 stop7h 11m
Delta
Tue 2/176:00 am
ONT
-
MFR
1 stop6h 11m
Delta
Deal found 1/14$197
This Delta deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:55 am
MFR
-
ONT
1 stop6h 59m
Delta
Tue 2/241:10 pm
ONT
-
MFR
2 stops10h 02m
Delta
Deal found 1/14$202
This Alaska Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/283:59 pm
MFR
-
ONT
1 stop4h 24m
Alaska Airlines
Sat 4/47:00 am
ONT
-
MFR
1 stop4h 54m
Alaska Airlines
Deal found 1/14$228
This Alaska Airlines deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:45 am
MFR
-
ONT
1 stop5h 23m
Alaska Airlines
Fri 2/274:02 pm
ONT
-
MFR
1 stop7h 57m
Alaska Airlines
Deal found 1/12$230
This Alaska Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/293:59 pm
MFR
-
ONT
1 stop4h 24m
Alaska Airlines
Sat 4/47:00 am
ONT
-
MFR
1 stop4h 54m
Alaska Airlines
Deal found 1/14$241
This Alaska Airlines deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/101:22 pm
MFR
-
ONT
1 stop7h 14m
Alaska Airlines
Tue 2/174:02 pm
ONT
-
MFR
1 stop7h 57m
Alaska Airlines
Deal found 1/12$243
This Delta deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:05 am
MFR
-
ONT
1 stop6h 44m
Delta
Sun 5/245:05 pm
ONT
-
MFR
1 stop5h 36m
Delta
Deal found 1/14$247
This United Airlines deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:25 pm
MFR
-
ONT
1 stop4h 32m
United Airlines
Wed 2/186:09 am
ONT
-
MFR
1 stop4h 47m
United Airlines
Deal found 1/14$251
This Alaska Airlines deal was found by Cheapflights users on 1/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:36 pm
MFR
-
ONT
1 stop4h 56m
Alaska Airlines
Thu 4/307:00 am
ONT
-
MFR
1 stop5h 01m
Alaska Airlines
Deal found 1/11$253
This Delta deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/275:30 pm
MFR
-
ONT
2 stops29h 18m
Delta
Wed 4/15:53 pm
ONT
-
MFR
1 stop5h 12m
Delta
Deal found 1/13$257

Cheapflights Fare Finder

 
Customize your flight search to find flights from Medford to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 14, 2026.
Use the filters below to find and compare flights from Medford to Ontario that are best for you.

Fly from

Medford

Fly to

Ontario

Route

Depart

Return

Price

MedfordOntario

MFR - ONT

MFRONT

Medford

Wed 2/11

5:05 am-12:16 pm

1 stop7h 11m

Ontario

Tue 2/17

6:00 am-12:11 pm

1 stop6h 11m

$197

MedfordOntario

MFR - ONT

MFRONT

Medford

Tue 2/24

5:45 am-11:08 am

1 stop5h 23m

Ontario

Fri 2/27

4:02 pm-11:59 pm

1 stop7h 57m

$230

MedfordOntario

MFR - ONT

MFRONT

Medford

Thu 2/26

5:45 am-11:08 am

1 stop5h 23m

Ontario

Tue 3/3

12:02 pm-5:07 pm

1 stop5h 05m

$230

MedfordOntario

MFR - ONT

MFRONT

Medford

Tue 3/24

3:59 pm-8:23 pm

1 stop4h 24m

Ontario

Fri 4/3

10:59 am-3:34 pm

1 stop4h 35m

$261

MedfordOntario

MFR - ONT

MFRONT

Medford

Sat 3/28

3:59 pm-8:23 pm

1 stop4h 24m

Ontario

Fri 4/3

7:00 am-11:54 am

1 stop4h 54m

$261

MedfordOntario

MFR - ONT

MFRONT

Medford

Fri 3/27

3:59 pm-8:23 pm

1 stop4h 24m

Ontario

Fri 4/3

10:59 am-3:34 pm

1 stop4h 35m

$263

MedfordOntario

MFR - ONT

MFRONT

Medford

Fri 3/27

5:00 am-12:23 pm

1 stop7h 23m

Ontario

Wed 4/1

5:53 pm-11:05 pm

1 stop5h 12m

$278

MedfordOntario

MFR - ONT

MFRONT

Medford

Wed 2/11

12:39 pm-5:03 pm

1 stop4h 24m

Ontario

Sat 2/14

7:00 am-3:53 pm

1 stop8h 53m

$290

MedfordOntario

MFR - ONT

MFRONT

Medford

Sat 3/28

3:59 pm-8:23 pm

1 stop4h 24m

Ontario

Tue 3/31

7:00 am-11:54 am

1 stop4h 54m

$294

MedfordOntario

MFR - ONT

MFRONT

Medford

Fri 3/27

3:59 pm-8:23 pm

1 stop4h 24m

Ontario

Tue 3/31

7:00 am-11:54 am

1 stop4h 54m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 22 results
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2
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Compare providers for flights from Medford to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Medford to Ontario in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Medford-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Medford-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Medford-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Medford-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Medford-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Medford to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Medford with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Medford to Ontario

What is the cheapest month to book a flight from Medford to Ontario?

Currently, July is the cheapest month in which you can book a flight from Medford to Ontario (average of $61). Flying from Medford to Ontario in December is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated January 14, 2026.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Medford to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,706 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,706 reviews
Alaska Airlines
8.0
Very good
11,706 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
7.9
Good
8,040 reviews
Alaska Airlines
8.0
Very good
11,706 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
9,157 reviews
Alaska Airlines
8.0
Very good
11,706 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Medford to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Medford to Ontario?

    For as low as $230, Delta can have you in Ontario from Medford in 5h 23m. Airlines will cover a distance of 641 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Medford to Ontario round-trip?

    Our cheapest airline available from Medford to Ontario is Delta. Our recent data shows that you can find tickets from as low as $167 on this airline. Additional options worth looking into are Alaska Airlines and United Airlines, starting at $225 and $238 round-trip. These flights start at 53% lower than the current average price 3 months from now.

  • Can I find deals for flights from Medford to Ontario that include hotel bookings?

    Yes. In addition to deals on Medford to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Medford to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Medford to Ontario.

  • Can I find deals for business class flights from Medford to Ontario?

    Yes. Cheapflights offers flight deals from Medford to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Medford to Ontario?

    Currently, July is the cheapest month in which you can book a flight from Medford to Ontario (average of $61). Flying from Medford to Ontario in December is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 3 airlines flying from Medford to Ontario

Discover the top 3 airlines that operate flights from Medford to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$167Average$346FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$225Average$330FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$239Average$356FlexibilityNo cancel feeOn-time69%

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